下述哪项不是心脏瓣膜病变时心输出量下降的代偿机制()A.扩张左室增加前负荷 B.增加 发布时间:2017-07-13 08:11 │ 来源:www.tikuol.com 题型:单项选择题 问题: 下述哪项不是心脏瓣膜病变时心输出量下降的代偿机制()A.扩张左室增加前负荷B.增加心肌收缩力C.心肌肥厚增加收缩单位D.增加心率E.扩张血管降低后负荷
题型:单项选择题 We've just moved into a bigger house and there's a lot to do. Let's _____ it. [ ]A. keep up with B. do away with C. get down to D. look forward to 查看答案